feat: updates, docs, license fixes, new helpers

local/bin/x-localip

@@ -6,11 +6,12 @@
 # License: MIT
 
 VERSION="1.0.0"
+SCRIPT_NAME="$(basename "$0")"
 
 # Function to display usage
 usage()
 {
-  echo "Usage: x-localip [options] [interface]"
+  echo "Usage: $SCRIPT_NAME [options] [interface]"
   echo "Options:"
   echo "  --help          Show this help message"
   echo "  --version       Show version information"
@@ -31,7 +32,7 @@ while [[ $# -gt 0 ]]; do
       exit 0
       ;;
     --version)
-      echo "x-localip version $VERSION"
+      echo "$SCRIPT_NAME version $VERSION"
       exit 0
       ;;
     --ipv4)